Last one! These folks are from the near future when biologists figure out how to treat the body as a soft entity. The form is malleable, limbs can be grafted on. Why these people have had these extensions I don’t know. The one at the back needs that arm to get things off shelves, sure, but why did he or she do get built like that in the first place? And, looking into the background, why are they both hanging around at a radar station?
The world of the future is a world of mystery.
Web app archetype six is Atom for Applications, or RSS for Interactivity. But I don’t say “RSS-I” because it sounds painful.